Which two steps should be performed by an administrator of IBM Tivoli Storage Manager to make sure they have intact database backup volumes information and device definitions available? (Choose two.)

A.
Perform backup of volhist file.

B.
Perform backup of devconfig file.

C.
Perform DB backup of Type=FULL.

D.
Perform backup of dsmserv.dsk file each day.

E.
Perform backup of dsmserv.opt file each day.

Explanation: